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Brake Fluid Tester Pen

(2 customer reviews)
SKU: HS-0019

Original price was: ৳680.00.Current price is: ৳580.00.

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  • Check the car brake oil quality
  • 5 LED lights display the percentage of moisture content in brake fluid
  • Auto power off
  • 1 LR03 AAA batteries (not included) – You can use simply a Sunlight battery
  • Testing DOT 3, DOT4, DOT5 brake fluid
  • Press the switch to turn on the power, the green LED light that represents the battery properly, if the green light does not shine then you have to replace battery

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  • Inside Dhaka

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  • Free Delivery on a purchase of 2500 Taka

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  • DHL Courier delivery

DHL courier will deliver to the specified address

2-3 Days


  • Warranty 1 year
  • Free 30-Day returns

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Brake fluid detection pen is based on the change in conductivity to determine the moisture change brake fluid. It shows clearly the extent of moisture contained by the light-emitting diode, high moisture content will lead to lower boiling point, affect braking performance. Red indicates the brake fluid needs immediate replacement, green represents good condition, yellow indicates the state is acceptable but soon replaced.
1. the green LED lights = water content in the brake fluid H2O <1.5%, brake fluid qualified
2. the yellow LED lights = brake fluid water content H2O = 1.5% to 3%, can continue to use, test again after few weeks.
3. the red LED lights = water content in the brake fluid H2O> 3%, can not continue to use the brake fluid needs to be replaced
Red LED: change brake fluid
4, LED red flashing: battery replacement
5, LED yellow: low moisture content, check again in few weeks
6, LED green: brake fluid lines / cell row

Customer Reviews

2 reviews

2 reviews for Brake Fluid Tester Pen

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  1. Verified owner Md. Naim Rahman (verified owner)

  2. Verified owner Anonymous (verified owner)

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